Using hover caption kirupa---not working when loading external swf file

Can someone please help me!??
I’m using the kirupa fla source file for the hover caption

and have created an external movie file where I want the hover captions to appear to be loaded into the main movie swf. The hover captions don’t work once this swf has been loaded but works as a standalone swf. Can someone please tell me how to fix this? Any advice appreciated. Thanks